package org.lq.web.admin;

import org.lq.entity.Type;
import org.lq.service.TypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.validation.Valid;

@Controller
@RequestMapping("/admin")
public class TypeController {
    @Autowired
    private TypeService typeService;
    @GetMapping("/types")
    public String types(@PageableDefault(size = 5,sort = {"id"}, direction = Sort.Direction.DESC )
                                    Pageable pageable, Model model)
                {
                    model.addAttribute("page", typeService.listType(pageable));
                    return "admin/types";
                }
    @GetMapping("/types/input")
    public String input(Model model){
        model.addAttribute("type", new Type());
        return "admin/types-input";
    }
    @PostMapping("/add_types")
    public String  post(@Valid Type type, BindingResult result, RedirectAttributes attributes){
        if(result.hasErrors()){
            return "admin/types-input";
        }
        Type typeByName = typeService.getTypeByName(type.getName());
        if(typeByName!=null){
            result.rejectValue("name","nameError","不能添加名称重复的分类");
            return "admin/types-input";
        }
        Type t = typeService.saveType(type);
        if(t==null){
            attributes.addFlashAttribute("message","操作失败");
        }else{
            attributes.addFlashAttribute("message","操作成功");
        }
        return "redirect:admin/types";
    }
    @GetMapping("/types/{id}/input")
    public String editInput(@PathVariable Long id, Model model){
         model.addAttribute("type",typeService.getTypeById(id));
        return "admin/types-input";
    }
    @PostMapping("/update_types/{id}")
    public String  editPost(@Valid Type type, BindingResult result, @PathVariable Long id, RedirectAttributes attributes){
        if(result.hasErrors()){
            return "admin/types-input";
        }
        Type typeByName = typeService.getTypeByName(type.getName());
        if(typeByName!=null){
            result.rejectValue("name","nameError","不能添加名称重复的分类");
            return "admin/types-input";
        }
        Type t = typeService.updateType(id,type);
        if(t==null){
            attributes.addFlashAttribute("message","更新失败");
        }else{
            attributes.addFlashAttribute("message","更新成功");
        }
        return "redirect:admin/types";
    }
    @GetMapping("types/{id}/delete")
    public String delete(@PathVariable  Long id,RedirectAttributes attributes){
        typeService.deleteType(id);
        attributes.addFlashAttribute("message","删除成功");
        return "redirect:admin/types";
    }

}
